--- a/animnode.cpp	Wed Mar 09 11:52:38 2016 -0800
+++ b/animnode.cpp	Sun Apr 10 15:07:34 2016 +0530
@@ -89,7 +89,7 @@
 
       result.setRed ((result.red () + step * index) % 255);
       result.setGreen ((result.blue () + step * index) % 255);
-      result.setBlue (abs ((int)result.green () - step * index) % 255);
+      result.setBlue (((int)result.green () - step * index) % 255);
     }
   if (alpha)
     result.setAlpha (alpha);